期刊文献+

施硅提高水稻叶片对紫外线胁迫的抗性 被引量:6

下载PDF
导出
摘要 采用加硅与缺硅营养液培养的方法,首次研究证明硅能提高水稻(Oryza sativa L.)叶片抗紫外线胁迫的能力。结果表明,在紫外胁迫条件下,缺硅水稻叶片表面出现明显的棕色伤害斑点,而加硅叶片未出现伤害症状。硅在水稻表皮细胞壁及细胞内部的积累明显促进了紫外吸收物质在表皮细胞中的聚集,使表皮中可溶性酚类物质含量提高17%,不溶性紫外吸收物质的含量增加65%左右。荧光显微镜观察表明,在表皮细胞外壁或胞内沉积的水合二氧化硅固体中包含着大量不溶性的酚类化合物,它们与可溶性酚类物质一起在叶片的上、下表皮细胞中形成了吸收紫外线的屏障。
出处 《Acta Botanica Sinica》 CSCD 2004年第6期691-697,共7页 Acta Botanica Sinica(植物学报:英文版)
  • 相关文献

参考文献35

  • 1Agarie S, Agta W, Uchida H, Kubota F, Kaufman P B. 1996.Function of silica bodies in the epidermal system of rice (Oryza sativa L.): testing the window hypothesis. J Exp Bot, 47:655-660.
  • 2Bilger W, Veit M, Schreiber L, Schreiber U. 1997. Measurement of leaf epidermal transmittance of UV radiation by chlorophyll fluorescence. Physiol Plant, 101: 754-763.
  • 3Bieza K, Lois R. 2001. An Arabidopsis mutant tolerant to lethal ultraviolet-B levels show constitutively elevated accumulation of flavonoids and other phenolics. Plant Physiol, 126:1105-1115.
  • 4Brandt L A, Koch E W. 2003. Periphyton as a UV-B filter on seagrass leaves: a result of different transmittance in the UVB and PAR ranges. Aquatic Bot, 76: 317-327.
  • 5Carlos L, Ballare M, Rousseaux C, Peter S. 2001. Impacts of solar ultraviolet-B radiation on terrestrial ecosystems of Tierra del Fuego (southern Argentina): an overview of recent progress. J Photochem Photobiol, 62: 67-77.
  • 6Dayanadan P, Kaufman P B, Franklin C L. 1983. Detection of silica in Plants. Am J Bot, 70: 1979-1084.
  • 7Dorweiler J E, Doebley J. 1997. Developmental analysis of Teosinte Glume Architecture 1: a key locus in the evolution of maize (Poaceae). Am J Bot, 84: 1313-1322.
  • 8Epstein E. 1999. Silicon. Annu Rev Plant Physiol Mol Biol, 50:641-664.
  • 9Fawe A, Abou-Zaid M, Menzies J G, Belanger R R. 1998. Silicon-mediated accumulation of flavonoid phytoalexins in cucumber. Phytopathology, 88: 396-401.
  • 10Huang S B, Dai Q J, Liu X Z. 1998. Biochemical adaptive mechanism of rice to elevated UV-B radiation. Acta Agron Sin, 24:464-469.

同被引文献136

引证文献6

二级引证文献103

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部